Cryptology ePrint Archive: Report 2007/185

New FORK-256

Deukjo Hong and Donghoon Chang and Jaechul Sung and Sangjin Lee and Seokhie Hong and Jesang Lee and Dukjae Moon and Sungtaek Chee

Abstract: The hash function FORK-256 was published at the ¯rst NIST hash workshop and FSE 2006. It consists of simple operations so that its performance is better than that of SHA-256. However, recent papers show some weaknesses of FORK-256. In this paper, we propose newly modi¯ed FORK-256 which has no microcoliisions and so is resistant against existing attacks. Furthermore, it is faster than the old one.

Category / Keywords: secret-key cryptography / Hash Function

Date: received 18 May 2007, last revised 30 Jul 2007

Contact author: hongdj at cist korea ac kr

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Version: 20070731:053357 (All versions of this report)

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